So you can simply open up the repository in the GUI view, navigate to the bit that you need and download simply that .RAR file ....
Alternatively you can sit at the command line and issue commands to pull down the entire repository to your local hard disk but this is multiple GB and extreme overkill !
For me as a somewhat gihub noob (What was wrong with SCCS, that's what I say) the learning and oops curve has been many and often.
As a test I pressed the download button and it was a 39MB download into my browsers preferred directory.
Please write back to say that this worked for you.
And welcome to the forum by the way